package com.iro.blog.web.admin;

import com.iro.blog.Service.TypeService;
import com.iro.blog.pojo.Type;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TypeController {
    @Autowired
    private TypeService typeService;

//分页查询
    @GetMapping("/types")
    public String types(@PageableDefault(size = 3,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
        model.addAttribute("page",typeService.listType(pageable));
    return "admin/types";
    }
    //更新获取id从而获取分类名称
     @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id, Model model){
        model.addAttribute("type",typeService.getType(id));
        return "admin/types-input";
    }
//进行后台验证
    @GetMapping("/types/input")
    public String input(Model model){
    model.addAttribute("type",new Type());
        return "admin/types-input";

    }
    //新增
    @PostMapping("/types")
    public String post(@Valid Type type, BindingResult result, RedirectAttributes attributes){
        Type type1=typeService.getTypeByName(type.getName());
        if (type1 !=null){
          result.rejectValue("name","nameError","不能添加一样的分类");
        }
   if (result.hasErrors()){
       return "admin/types-input";
   }
    Type t=typeService.saveType(type);
    if (t==null){
        attributes.addFlashAttribute("message","新增失败");

    }else {
        attributes.addFlashAttribute("message","新增成功");
    }
    return "redirect:/admin/types";
    }
//修改
    @PostMapping("/types/{id}")
    public String editPost(@Valid Type type, BindingResult result,@PathVariable Long id, RedirectAttributes attributes){
        Type type1=typeService.getTypeByName(type.getName());
        if (type1 !=null){
            result.rejectValue("name","nameError","不能添加一样的分类");
        }
        if (result.hasErrors()){
            return "admin/types-input";
        }
        Type t=typeService.updateType(id,type);
        if (t==null){
            attributes.addFlashAttribute("message","更新失败");

        }else {
            attributes.addFlashAttribute("message","更新成功");
        }
        return "redirect:/admin/types";
    }
    @GetMapping("/types/{id}/delete")
    public String detele(@PathVariable Long id, RedirectAttributes attributes){
      typeService.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
      return "redirect:/admin/types";
    }
}
